Scotland’s animal welfare charity was alerted to the incident on March 17 after a member of the public found the dead moggie on the shoreline at Tayport High Lighthouse at around 11am.
The cat’s owners have since been identified, but the SSPCA said it wanted to trace the person responsible, warning trap users to check their devices regularly.
Scottish SPCA inspector Robyn Myszor said, “This was a very distressing incident for everyone involved.
“When the cat was found, the animal appeared to have not long passed away. The member of the public who found the cat said they had been in the area the day before around the same time and there was no sign of the trap.
“There was also a white bedsheet found on the grass verge in direct line with the trap which wasn’t there the day before either.
“We did manage to trace the owner of the cat and our thoughts are with them at this sad time.
“We are looking to find out who set the trap and if anyone in the area knows of anyone using traps like this one.
“It is a legal requirement for traps and snares to be checked every 24 hours. Live catch traps should be checked at minimum twice daily as good practice.
“If anyone has any information on this incident they can contact our confidential animal helpline on 03000 999 999.”